Results 91 to 100 of about 273,232 (207)

Ammonia oxidation coupled to CO2 fixation by Archaea and Bacteria in an agricultural soil

open access: yes, 2011
Ammonia oxidation is an essential part of the global nitrogen cycling and was long thought to be driven only by bacteria. Recent findings expanded this pathway also to the archaea.
Dumont, Marc G.   +10 more
core   +1 more source

Ammonia-oxidizing archaea and bacteria are structured by geography [PDF]

open access: yes, 2013
Introduction Biological soil crusts (BSCs) can dominate surface cover in dry lands worldwide, playing an integral role in arid land biogeochemistry, particularly in N fertilization through fixation and cycling.
Soule, Tanya   +5 more
core  

Ammonia‐oxidizing archaea: important players in paddy rhizosphere soil? [PDF]

open access: yesEnvironmental Microbiology, 2008
Summary The diversity (richness and community composition) of ammonia‐oxidizing archaea (AOA) and bacteria (AOB) in paddy soil with different nitrogen (N) fertilizer amendments for 5 weeks were investigated using quantitative real‐time polymerase chain reaction, denaturing gradient gel electrophoresis (DGGE) jand ...
Xue-Ping, Chen   +4 more
openaire   +2 more sources

The response of nitrifier, N-fixer and denitrifier gene copy numbers to the nitrification inhibitor 3,4-dimethylpyrazole phosphate

open access: yesPlant, Soil and Environment, 2013
A laboratory incubation experiment was conducted to examine the effects of 3,4-dimethylpyrazole phosphate (DMPP) on the transformation of urea-N and associated microbial communities in a low-fertility brown soil. The soil was supplied with urea at 180 kg
X.X. Dong   +4 more
doaj   +1 more source

Ecophysiological Characterization of Ammonia-Oxidizing Archaea and Bacteria from Freshwater [PDF]

open access: yesApplied and Environmental Microbiology, 2012
ABSTRACT Aerobic biological ammonia oxidation is carried out by two groups of microorganisms, ammonia-oxidizing bacteria (AOB) and the recently discovered ammonia-oxidizing archaea (AOA). Here we present a study using cultivation-based methods to investigate the differences in growth of three AOA cultures and one ...
Elizabeth, French   +4 more
openaire   +2 more sources

Abundance and diversity of nitrogen-removing microorganisms in the UASB-anammox reactor.

open access: yesPLoS ONE, 2019
Anaerobic ammonium oxidation is considered to be the most economical and low-energy biological nitrogen removal process. So far, anammox bacteria have not yet been purified from cultures.
Rui Chen   +5 more
doaj   +1 more source

Short‐term effects of Brassicaceae crop residue on soil nitrification and nodulation in the subsequent field pea

open access: yesAgrosystems, Geosciences &Environment, Volume 9, Issue 4, December 2026.
Abstract Glucosinolates (GLS) in Brassicaceae crops are known to suppress soil nitrification. Despite widespread inclusion of Brassicaceae species in pulse crop rotations, their effects on soil nitrification and root nodulation of subsequent pulse crops are poorly understood.
Piumi N. Gallage   +3 more
wiley   +1 more source

Soil microbial diversity: The hidden wealth of sustainable farming

open access: yesAgrosystems, Geosciences &Environment, Volume 9, Issue 4, December 2026.
Abstract Soil harbors diverse microbial communities that are fundamental to soil health and agricultural sustainability. Despite their ecological and agronomic importance, these communities remain underutilized as biological resources for improving crop production.
Mohan Singh Rana   +6 more
wiley   +1 more source

Emergent Macrophytes Act Selectively on Ammonia-Oxidizing Bacteria and Archaea [PDF]

open access: yesApplied and Environmental Microbiology, 2012
ABSTRACT Ammonia-oxidizing bacteria (AOB) and archaea (AOA) were quantified in the sediments and roots of dominant macrophytes in eight neutral to alkaline coastal wetlands. The AOA dominated in most samples, but the bacterial-to-archaeal amoA gene ratios increased with increasing ammonium levels and pH in
Trias Mansilla, Rosalia   +7 more
openaire   +3 more sources

Green Manure Effects on Soil Microbiota Depend on Seasonal Cropping Cycle, Manure Species, and Kohlrabi Cultivar

open access: yesJournal of Sustainable Agriculture and Environment, Volume 5, Issue 4, December 2026.
ABSTRACT Introduction Green manure application is widely used to improve soil fertility, but its effects on soil microbial communities are context‐dependent. This study examined how green manure species and seasonal cropping cycle influence root‐zone soil microbiomes, soil chemistry, and kohlrabi growth.
Birgit Wassermann   +6 more
wiley   +1 more source

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